package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.MemberPrice;
import com.atguigu.common.to.SkuHasStockVo;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    private SpuImagesService spuImagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService productAttrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService attrValueService;

    @Resource
    private CouponFeignService couponFeignService;

    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private WareFeignService wareFeignService;

    @Autowired
    private SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    //TODO 高级部分完善 失败等信息
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {

        //1、保存SPU商品基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        //2、保存SPU的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(),images);

        //4、保存SPU的规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity byId = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(byId.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.savePrductAttr(collect);

        //5、保存spu的积分信息 gulimall_sms -> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBouds(spuBoundTo);
        if(r.getCode() != 0){
            log.error("远程保存spu积分信息失败");
        }

        //5、保存当前SPU对应的所有SKU信息
        List<Skus> skus = vo.getSkus();
            if(skus!=null && skus.size()>0){
                skus.forEach(item ->{
                  String defaultImg = "";
                  for (Images image : item.getImages()){
                      if(image.getDefaultImg() == 1){
                          defaultImg = image.getImgUrl();
                      }
                  }
                  SkuInfoEntity skuInfo = new SkuInfoEntity();
                  BeanUtils.copyProperties(item,skuInfo);
                  skuInfo.setBrandId(infoEntity.getBrandId());
                  skuInfo.setCatalogId(infoEntity.getCatalogId());
                  skuInfo.setSaleCount(0L);
                  skuInfo.setSpuId(infoEntity.getId());
                  skuInfo.setSkuDefaultImg(defaultImg);
                    //5.1）、保存SKU的基本信息 pms_sku_info
                  skuInfoService.saveSkuInfo(skuInfo);
                    //SKU的自增主键
                    Long skuId = skuInfo.getSkuId();
                    List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                        SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                        skuImagesEntity.setSkuId(skuId);
                        skuImagesEntity.setImgUrl(img.getImgUrl());
                        skuImagesEntity.setDefaultImg(img.getDefaultImg());
                        return skuImagesEntity;
                    }).filter(entity ->{
                        //返回true就是需要，返回false就是剔除；
                       return  !StringUtils.isEmpty(entity.getImgUrl());
                    }).collect(Collectors.toList());
                    //5.2）、保存sku的图片信息 pms_sku_images

                    skuImagesService.saveBatch(imagesEntities);
                    //5.3）、保存sku的销售属性信息 pms_sku_sale_attr_value
                    List<Attr> attr = item.getAttr();
                    List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                        SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                        BeanUtils.copyProperties(a, attrValueEntity);
                        attrValueEntity.setSkuId(skuId);
                        return attrValueEntity;
                    }).collect(Collectors.toList());
                    attrValueService.saveBatch(skuSaleAttrValueEntities);
                    //5.4）、保存SKU的优惠满减信息 跨库
                    SkuReductionTo skuReduction = new SkuReductionTo();
                    BeanUtils.copyProperties(item,skuReduction);

             /*       List<MemberPrice> memberPrice = new ArrayList<>();
                    item.getMemberPrice().forEach(aaa->{
                        MemberPrice MemberPrice = new MemberPrice();
                        MemberPrice.setId(aaa.getId());
                        MemberPrice.setName(aaa.getName());
                        MemberPrice.setPrice(aaa.getPrice());
                        memberPrice.add(MemberPrice);
                    });*/
                    List<MemberPrice> memberPrices = item.getMemberPrice().stream().map(items -> {
                        MemberPrice MemberPrice = new MemberPrice();
                        BeanUtils.copyProperties(items, MemberPrice);
                        return MemberPrice;
                    }).collect(Collectors.toList());
                    skuReduction.setMemberPrice(memberPrices);
                    skuReduction.setSkuId(skuId);

                    if(skuReduction.getFullCount() >0 || skuReduction.getFullPrice().compareTo(new BigDecimal("0")) == 1){
                        R r1 = couponFeignService.saveSkuReduction(skuReduction);
                        if(r1.getCode() != 0){
                            log.error("远程保存sku优惠信息失败");
                        }
                    }


                });
            }
    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
          this.baseMapper.insert(infoEntity);
    }

    //spu检索
    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
          wrapper.and((w) ->{
              w.eq("id",key).or().like("spu_name",key);
          });
        }
        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }
        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),wrapper

        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void up(Long spuId) {

        //1、查出当前spuid对应的所有sku信息，品牌的名字；
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO 4、查询当前sku的所有可以被用来检索的规格属性，
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> earchAttrIds = attrService.selectSearchAttrs(attrIds);

        Set<Long> idSet = new HashSet<>(earchAttrIds);

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());

        //TODO 1、发送远程调用，库存系统查询是否有库存；
        Map<Long, Boolean> stockMap = null;
        try{

            R r = wareFeignService.getSkusHasStock(skuIdList);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {
            };
            stockMap = r.getData(typeReference).stream().collect(
                    Collectors.toMap(
                            SkuHasStockVo::getSkuId, item -> item.getHasStock()
                    )
            );
        }catch (Exception e){
            log.error("库存服务查询出现异常：原因{}",e);
        }

        //2、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,esModel);
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImage(sku.getSkuDefaultImg());
            //设置库存信息
            if(finalStockMap == null){
                esModel.setHasStock(true);
            }else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //TODO 2、热度评分。 0，
            esModel.setHotScore(0L);

            //TODO 3、查询品牌和分类的名字信息
            BrandEntity brand = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brand.getName());
            esModel.setBrandImg(brand.getLogo());

            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());
            //设置检索属性
            esModel.setAttrs(attrsList);
            return esModel;
        }).collect(Collectors.toList());

        //TODO 5、将数据发送给es进行保存；gulimall-search;
        R r = searchFeignService.productStatusUp(upProducts);
        if(r.getCode() == 0){
            //远程调用成功
            //TODO 6、修改当前spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //远程调用失败
            //TODO 7、重复调用？接口幂等性  重试机制？
            //Feign调用流程
            /**
             * 1、构造请求数据，将对象转为json；
             * 2、发送请求进行执行（执行成功会解码响应数据）；
             * 3、执行请求有重试机制
             *   while(true){
             *
             *       try{
             *
             *       }cath(){
             *
             *       }
             *   }
             */
        }
    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {

        SkuInfoEntity byId = skuInfoService.getById(skuId);
        Long spuId = byId.getSpuId();
        SpuInfoEntity spuInfoEntity = getById(spuId);

        return spuInfoEntity;
    }


}